Feature:1. Digital insulation resistance tester, with a 64x44mm LCD display, the maximum display is "1999".2. Wide measuring range, with over‑range indication, only the highest digit displays "1" when over limit.3. With data retention function, support test lock, stable performance and convenient operation.4. Support automatic shutdown function (about 15 minutes after booting) to save battery power.5. Suitable for insulation resistance testing of motors, cables, electromechanical equipment, telecommunications equipment, power facilities, etc.Specification:Condition: Brand NewItem Type: Insulation Resistance TesterMaterial: ABSDisplay: 64x44mm LCD Display, Maximum Display "1999"Over-Range Indication: When the upper limit is exceeded, only the highest digit displays "1"Power Supply: 6x1.5V Dry Battery (Battery Not Included) Under-voltage indication when the voltage is insufficientAuto Power Off Function: About 15 minutes after power onPower Consumption: Test no-load power consumption <300mwUse Environment: Temperature: 0℃-400℃, Relative Humidity: 30%RH-85RHBasic FunctionRangeBasic AccuracyOutput Voltage100V/ 250V/500V/1000V±10%Test Current100V (R=100kΩ) 1mA±10%250V (R=250kΩ) 1mA500V (R=500kΩ) 1mA1000V (R=1MΩ) 1mARangeInsulation100V: 0.1MΩ-20MΩ±(4% of Reading ±2 Digit)250V: 0.1MΩ-20MΩ500V: 0.1MΩ-50MΩResistance1000V: 0.1MΩ—100MΩ100V: 0.1MΩ—20MΩ±(4% of Reading ±2 Digit)250V: 20MΩ-500MΩ500V: 50MΩ-1000MΩ1000V: 100MΩ-2000MΩShort Circuit Current100V About 1.2mA, 250V/500V/1000V About 1.6mAMedian Resistance100V/250V/500V: 2 MΩ1000V: 5MΩVoltage MeasurementAC750V±(2% Reading + 5 Digit)Jacks LocationInsulation Resistance: L, EAC750V: ACV, GAC750V Input Impedance: 1MΩAC750V Frequency Response: (50-200) HzNote: The median resistance guarantees that the voltage at both ends of the measurement is not lower than the lower limit of resistance measurement at 90% of the nominal value of the test voltage..Package List:1 x Insulation Resistance Tester (Battery Not Included)2 x Test Lead2 x Clip1 x Bag1 x Manual